Title

Liquid crystal lens with large focal length tunability and low operating voltage

Authors

Authors

H. W. Ren; D. W. Fox; B. Wu;S. T. Wu

Comments

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Abbreviated Journal Title

Opt. Express

Keywords

SPHERICAL ELECTRODE; Optics

Abstract

We demonstrate a tunable focus liquid crystal (LC) lens by sandwiching a homogeneous LC layer between a planar electrode and a curved electrode. The curved electrode which is made of conductive polymer has parabolic shape with a large apex distance. Such design dramatically reduces the phase loss which leads to a short focal length (similar to 15 cm). By using a thin top glass substrate on the curved electrode side, the operating voltage of the lens cell for achieving the shortest focal length is reduced to similar to 23 V-rms. This LC lens has advantages in large focal length tunability, low operating voltage, and good mechanical stability. (C) 2007 Optical Society of America.

Journal Title

Optics Express

Volume

15

Issue/Number

18

Publication Date

1-1-2007

Document Type

Article

Language

English

First Page

11328

Last Page

11335

WOS Identifier

WOS:000249339800030

ISSN

1094-4087

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